86757487domain: NPropertiesPrimalityPrimeyesAppears in sequencesG.f. A(x) satisfies 0 = A(0) and 0 = f(x, A(x)) where f(u, v) = (u - v) * (1 + u*v) - u*v * (1 - u*v).at n=26A245735Prime numbersat n=5039915